Rotary compressor.



PATBNTED APR. 2a, 1908.

C. G. PALMER. ROTARY COMPRESSOR.

APPLICATION FILED 1120.15, 1900.

INVENTOH WITNESSES j ATTORNEY} (JASSIUS CLAY PALMER, OF (JRANFORD, NEW JERSEY.

, ROTARY COMPRESSOR.

Specification of Letters Patent.

Patented April 28 1908.

Applicationflled December 15, 1906. Serial No. 348,075.

To all whom it may concern:

Be it known that I, CAssIUs' CLAY PALMER, a citizen of the UnitedStates, and a resident of Cranford, in the county of Union and State of New Jersey, have invented certain new and useful Improvements in Rotary Compressors, of which the following is a specificatlon.

The present invention pertains to rotary engines and has particular application to a mechanism of the class described and commonly known as rotary compressors.-

Inthe present instance itlsmy intention to provide means within the com ressor for taking up and reducing the end t irust commonly occurring between the end of'the rotor or drum and the head or adjacent end wall'of the casing of the compressor, so that I provide a mechanism capable of attaining a high degree of efliciency.

The invention consists in the construction, combination and arran ement of'parts set forth in and falling wit "nthe scope of the ap ended claims.

eferring now to thea-ccompanying drawings wherein I have illustrated a preferred embodiment of my invention, Figure 1 is-a vertical sectional view taken through the compressor embodying my improvements, the power shaft being shown in elevation; Fig. 2 is a detail view taken on the line 2'2 of Fig. 1, a portion of the abutment plate being broken away to show theylocation of the anti-friction means in the retainer; and Fig.

3 is a detailed sectional view showing a portion of the anti-friction retaining means with the anti-friction device therein.

Referring to the accompanying drawings in detail, A indicates the casin of the compressor embracing in its con truction the lead or end members 5, 5. ccentricall mounted relative to the casing and exten ing therethrough is the power shaft 6 carrying the driving pulley 7 by means of which the shaft is driven. This power shaft, as is usual in engines of this type, carries a drum or rotor 8 revolving within the chamber 9 of the casing. In In improved construction each of the casing eads 5 is formed with an annular groove or way 10 receiving the ring member 11 having a ball race 12, formed, therein, in which'race are seated a number of suitable anti-friction ball bearings 13. Each head is also formed with a groove 14' for the reception of the abutment late 15 having onei iface bearing against the antithen it will be taken up with friction bearings 13, while the other vfiat face thereofis in fractional contact with the adjacent face of the rotor or drum. These plates are preferably of a relatively greater diameter than the drum and have relatively large central openings 16 formed therein, so that such plate may revolve with the drum, the openings at the center being large to allow for the eccentric mounting of the rotor. In order to thrust the ball race or ring outward with a yielding pressure against its adjacent abutment plate, I provide a pluralit of springs 17 arranged at suitable lnterva s around the groove 10 and bearing against the back of the ball ring to normally thrust the same outward, so that it will at vall times contact with the yielding pressure of the adjacent face of the abutment plate. 18 in dicates lubricating cups for supplying oil to the shaft bearings through the lubricating ducts 19. The compressor is, of course, provided with the usual inlet and outlet ports, or channels, for the fluid to be compressed. 'It will be noted in this machine that when any end thrust is applied to the rotor ordrum it. will be communicated to the abutment plate revolving with such rotor and i by the yielding antifriction devices hereto ore described, so that an easy running machine results.

Having thus described my invention, what I claim as new and desire to secure by Let ters Patent of the United States is 1. In a rotary compressor, the combination with the casing, a grooved head therefor the drum shaft and the drum, a ring member carrying anti-friction means located within the grooved head of the casing, an abutment plate separate from but adapted'to revolve with the drum and to bear against the antifriction means within the ring, and means for holding the ring carrying the anti-friction means in yielding engagement with the plate. 2. In a rotary compressor the combination with the casing, grooved heads therefor the drum shaft and the drum, of rings located within the grooved heads and adapted to retain anti-friction devices, a second groove formed in eachihead of the casing, an abutment plate separate from, but revolving t 1e drum and moving within said grooves, and springs for holding the retaining rings in yielding engagement with the abutment lates.

3. n a rotary compressor, the combination with the casing, a grooved head therefor,

the drum shaft and the drum, an anti-friction ring member located within the grooved head of the casing, an abutment plate separate from but adapted to revolve with the drum ,and to bear against the anti-friction ring member, and means for holding the -anti-friction ring member in yielding engagement with the plate.

4.111 a rotary compressor the combination with the leasing, grooved heads therefor, the drum shaft and the, drum, of anti-friction ring members located within the grooved heads, a second groove formed in each head ing the'anti-frietion ring mem ers in yielding engagement with the abutment plates.

In testimony whereof I have signed my name to this specification in the presence of 29 two subscribing witnesses.

CASSIUS CLAY PALMER.

Witnesses:

R. B. CAVANAGH, T. E. HARDENBURGH, Jr. 

